package com.laolang.gongda.bookshop.service;

import java.util.List;

import com.laolang.gongda.bookshop.domain.User;

public interface UserService {
	
	public void persist( User user );
	
	public void remove( User user );
	
	public void merge( User user );
	
	public User find( Integer id );
	
	public List<User> findUserByEmail( String email );

}
